RED-NECKED GREBES, COLONEL SAMUEL SMITH PARK, TORONTO, ON

   In the first three photos the two Red-necked Grebes on the right with the rufous necks are  breeding adults and the two on the left with the dark stripes on their head are juveniles.  The last photo shows a nonbreeding adult Red-necked Grebe.  August-September are the months when these grebes molt from breeding to nonbreeding plumage.